Sole-shanking machine



Patanted Mar. l4, I899.

0. PAIIUETTE. SOLE SHANKING MACHINE.

(Application filed Dec. 6, 1897.)

2 8heots8heat I.

(No Model.)

era 6079 TH: Nonms Pnzws (20 PKOTO-UTNQ, WASHINGTON, n. c.

Patentd Mar. I4, 1899.

No. 62l,l29.

0. PAOUETTE.

SOLE SHANKING MACHINE.

(Ayplication filed. Dec; 6, 1897.)

2 Sheets-Sheet 2.

(No Model.)

THE News PEYERS co. PnoTo-Lnuof. wnumo'mu, u. c,

UNITED STATES PATENT OFFIQE OOTAVE PAQUETTE, OF HAVERHILL, MASSACHUSETTS.

SOLE-SHANKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 621,129, dated March 14, 1899-. Application filed December 6, 1897. I Serial No. 660,868. (No modem To all whom it may concern:

Be it known that I, OOTAVE PAQUETTE, of Haverhill, county of Essex, State of Massachusetts, have invented an Improvementin Sole-Shanking Machines, of which the followin g description,in Connection with the accompanying drawings, is aspecification, like letters and figures on the drawings representing like parts.

This invention has for its object the production of a novel machine for automatically shanking or beveling the shanks of soles for use in boots and shoes.

Boots and shoes are usually sold in cases, each case containing a number of different sizes all of the same general shape, but dif- .fering in length, and in all these shoes the shank Varies somewhat in width. Heretofore the edges of the shank when skived have had removed from them a piece of material of substantially uniform width no matter what the width or size of the sole, and as a result thereof the less the width or smaller the size of the shoe the less has been the width of the unskived part of the sole in the shank. In this invention it is desired that the shank of the sole in all the difierentsizes, or at least in all the different widths of a given size and in as many sizes as desired, shall present an unskived portion of the same width, so that all the said shoes present substantially the same degree of flexibility in the shank. I have therefore devised a novel machine to operate in the manner described.

My novel machine comprehends a pattern which is applied to the face of the sole to partially cover the shank, said pattern-plate contacting with the median line of the shank of whatever width and size of sole, the skivingblades entering the spaces in this patternplate and removing from the edge of the sole up to the edge of the pattern-plate a strip of greater or less width, (that depending upon the size of the sole,) the strip so removed being wider as the width increases, and vice versa.

One part of this invention consists in an organized machine for skiving one side of the sole in the shank, said machine containing a sole-support, a pattern-plate adapted to'be applied to the opposite side of the sole and cover the median line thereof, said patternplate presenting at its sides concavities to leave exposed the edges of the shank of the sole, a series of blades, and means to operate them to cause said blades to sweep through said eoncavities and remove from the side of the sole a skiving of greater or less width,

according to the quantity of sole exposed in the concavities of said pattern-plate.

Figure 1, in elevation, shows a sufficient portion of a sole-shanking machine to embody one form of my invention. Fig. 2 is a left-hand side view of the parts shown in Fig. 1. Fig. 3 shows the shank-pattern detached. Fig. 4 is an enlarged sectional detail taken through the rack to be described for operating the skiving-blade carriers. Fig. 5 is an enlarged sectional detail of the machine to be referred to, parts being broken away to show the details of construction. Fig. 6 is a partial top or plan View below the dotted line m, Fig. 4. Fig. 6 shows the carrier and its arm detached in top view. Fig. 7 is a section on the dotted line m, Fig. 4. Figs. 8 and 9 show two soles differing in width. Fig. 10 is a section on the line 00 Fig. 8. Fig. 11 is a perspective detail of the arm or carrier for the skiving-blade, and said figure shows the roller for cooperating with the edge of the pattern. Fig. 12 is a perspective detail showing the skiving-blade alone.

The framework of the machine consists, essentially, of suitable legs A and a top or table plate A and a sole-support A the said sup port in this instance of my invention being represented as standing might be arranged, if desired, in a horizontal plane, as will be obvious. The support A in this instance of my invention has or sustains suitable bearings to receive two journals a, upon which are mounted to turn blade-carriers, herein shown as composed of arms B, having attached segments b, the arms shaped as best shown in Figs. 5 an 6 each having an inturned portion b which is hollow and constructed to serve as a guide for the shank W, to which is attached a skiving-blade b this end of said arm having, preferably, an antifriction-roller 19 which turns on a journal 5 held in ears at the end of said shank b the said shank also being provided with an adjustable gage b, which may be adjusted as desired by a suitable adjusting device 11 shown as a screw. The gage b is preferably vertically; but it a mat held in yielding engagement against the block,

sole, or blank being skived by the blade 19 in order that it may maintain the leather in firm position in front of the blade as the latter is swung around in its skiving movement, the gage being free to yield to inequalities of the leather, and for this purpose it is preferably provided with a spring 11 on the shank of the adj usting-screw 11 By reference to Figs. 11 and 12 it will be seen that I have provided a readily-removable skiving-blade b of peculiar form, this blade having an offset 11 which, together with a shoulder 11 of the inturned portion 1), adjacent to the shank 11 (see Fig. 6%) serves to regulate the thickness of leather left on the sole under the skiving-knife. By this means I am enabled to insure an absolutely uniform thickness of skived portions, it being understood that the inner side of the portion I) immediately adjacent the shoulder b rests continuously against the sole-support A, so that the width of skived portion left on the sole corresponds to the distance between the cutting edge of the blade and the said sole-support, and this distance is varied for different thicknesses desired by changing the blades b there being provided a series of blades having diflierent sizes of ofisets b and if a very thin skived portion is desired the offset 12 will project over the shoulder b so as to bring the cutting edge of the blade still nearer to the sole-support A The framework has suitable bearings for a shaft 0, which may be rotated by power in any usual or suitable way, the said shaft hav ing loose upon it, as herein shown, a belt-pulley C, with which cooperate suitable devices, to be described, to insure, through the operation of a treadle T, the release of the shaft 0, that it may make one rotation and then be automatically stopped. The shaft 0 may carry, as herein represented, an eccentric 0 which is embraced 'by an eccentricstrap 0 the arm C of said strap being joined at 0 as herein shown, to a toothed rack 0 which is moved upand down, and being in mesh with the segments 1) imparts movement to the same and to the arms B of the bladecarriers.

The table A has suitable guideways c, in which is fitted to slide a stand 0, said stand supporting in an adjustable manner the controller c for the pattern plate or device D. The controller is represented as a lever pivoted at c on the stand 0', the lower end of said lever having a face 0 which in the rotation of the eccentric O is struck by a cam projection 0 carried by said eccentric. The upper end of the controller (3 carries a latch 0 under the control of a suitable spring 0 said latch engaging a notch 2 (shown by dotted lines, Figs. 2 and 3, and full lines, Fig. 4) in the upper end of the pattern-plate D, the lower end of said pattern-plate resting upon a suitable projection, as 0 extended from the inner side of said controller. The stand a is ver pushing the stand 0 in the said guideways toward the sole support, the adjustment of the said stand enabling the pattern-plate to be put substantially in contact with the face of the sole opposite to that part thereof which is to be skived; but the sole is not clamped as it will be when it is being skived by the lever d, but rather by the action of the cam c on the cam-shoe 0 'The pattern-plate D (shown detached in Fig. 3) has two pattern surfaces or walls, shown as concavities, the outlines of the said coneavities being uniformly shaped, the right-hand con-cavity, Fig. 3, being shaped to determine the skiving of that part of the shank which is to fall at the inner side of the foot, whereas the left-hand concavity in said figure is shaped to control the skiving of that part of the shank of the sole which is to fall at the outside of the foot. In viewing these two concavities it will be noticed that the cavity at the right, looking at the outer edge of the sole, is of less width in the line 0: than the opposite cavity in the line 00 at the same distance from the center line of the pattern, and to change from rights to lefts this pattern-plate has to be turned over the skivingblade, owing to the fact that its shank runs in the guideway of the arm carrying it. The said shank being acted upon by a suitable spring, as e, enables this skiving-blade to enter correctly and follow the pattern, the roller 19 traveling over the edge of the pattern.

It is obvious that the concavities of pattern-faces of the pattern-plate D may be variously changed in shape, one to differ more or less from the other, according to the partieular shape of the shoe to be made and the amount of material to be skived from the edge of its shank.

The support A for that face of the sole which is not to be skived carries a movable stop 0, (shown bestin Fig. 4,) against which is placed one end of the sole S as the latter is put in place between the said supportingplate and the said pattern-plate, and as the machine is started the controller 0 acts to force the said pattern-plate firmly and snugly against the support A and keep it there during the time that the shank is being skived. When the machine is started, the rack O is down in the position Figs. 1, 4, and 5, and in the operation of the machine the rack C is raised, turning the segments b to actuate the blade-carriers, causing them to sweep upwardly in the direction of the arrow 2,'Fig. 5, and cut the sole S at s to leave a scarf, a certain portion of the material at the edge of the sole being removed, the roller 0* sweeping up and out from the upper portion of the pattern just about as a cavity 6 in the rack reaches the inner end of the stop 6, and at that time a spring 6 acting on said stop (see Figs. 4 and 5) and mounted on a suit- ICC able stud 6 moves the stud to the left in Fig. 4, and at the same instant the cam 0 passes beyond the shoe 0 which leaves the controller c in such position that it removes its strongest clamping pressure from the pattern-plate, leaving the shanked sole free to drop out from the machine. As the parts go back into starting position the flat side of the rack 0 again acts on the stop and restores it to its operative position. The skived part 8 of the sole falls at the outer edge of the sole,

while the skived portion 8 falls at the inner portion of the sole.

Heretofore, so far as I am aware, all skiving-machines have been built on the principle of having the skiving-blades cut a certain distance in, measuring from the edges of the sole, whereas I proceed on an entirely different principle and make the skiving-blades cut to a certain distance from a median or other line within the shank of the sole, thereby leaving the unskived or shank portion of the sole of uniform width whether the sole be wide or narrow. A convenient means, and the one preferably employed and herein shown, for accomplishing my object is by means of a pattern such as is shown in Fig. 3 and already described. In such case one pattern D may be used for one or more sizes of soles, the patterns being changed in size and varied in shape for the different sizes, styles, and kinds of boots and shoes, the main idea and object of my invention being to provide means for maintaining a desired Width of unskived shank irrespective of variations in width of sole, so that, for instance, a sole for a size No. 8, width D, shoe will have the same extent of unskived shank as a sole of width A of the same size.

Referring to Figs. 8 and 9, I have illustrated two soles of the'same size, (size 8, for instance,) but of different widths, 8 representing the uncut portion of the sole, which extends through the median line of the shank, and it is the object of this invention to leave this uncut portion 5 of the same width in the line m in both of the illustrative soles shown, and this is gained by applying to the .face of the sole' to be-skived, as already described, a pattern plate, which protects that part of the sole which is to be left uncut, leaving exposed adjacent the pattern-plate that portion of the sole which is to be skived, and the skiving blade is so supported and moved and controlled by a spring that it will follow the contour of this pattern no matter what it may be and will remove from the sole a skiving greater or less in extent, according to the width of the sole left exposed beyond the edges of the pattern.

The table A of the machine has erected upon it a stand f, which supports a rod or shaft f, preferably a screw-rod having left and right threads. (See Fig. 7.) This rod receives suitable nuts 3 and 4, and the rod is extended through like gages f which stand at the face of the sole-support A and act against the edges of the sole S, the rotation of the nuts on the screws moving the gages toward or from each other, as may be desired, to correctly position the sole to be skived.

At the back of the support A I have lo- 'cated a suitable guide, in which may slide the upper end of the rack 0 said guide being open at its sides to enable the teeth I) of the segments to pass within the guide to be engaged by the teeth of the rack. The guideway shown to contain the rack is covered by a removable plate g, which may be held in place by suitable screws 9.

The stand 0 has depending lugs h, which are acted upon by suitable springs h, said springs normally keeping the edge of the stand against the adjusting device d in whatever position it may be left, that depending upon the thickness of the sole to be skived.

As before stated, the main shaft 0 is to be rotated once and then stopped, and this may be done by any usual or suitable devices capable of permitting a shaft to rotate once and then be stopped. So this invention is not limited to any particular construction of starting and stopping mechanism; yet I will describe one form which may be used.

Referring to Figs. 1 and 2, the belt-pulley O has fixed to its face a plate m, provided with a projection 'm, adapted to engage at times the hooked end m of a bell-crank lever m pivoted at m on adisk m fast on the shaft 0, it being understood that the beltpulley O is loose on said shaft and is continuously rotated in the direction of the arrow, Fig. 2. The bell-crank at has an arm m adapted to engage-the hooked free end of an arm m fast on a shaft m rocked by the treadle T, connected thereto by a link on", so that when the treadle is depressed it raises the arm m and releases the bell-crank m permitting its spring m toimmediately swing its hooked end m in the path of the revolving projection m, whereby the shaft 0 is immediately rotated. One rotation, however, is all that can take place, for the reasonthat as the bell-crank m comes around its arm m comes into contact again with the arm at and is thereby rocked on its pivot m so as to unlock the shaft from the driving-pulley and permit the former to stop. This single rotation of the shaft permits the rack c to be raised and lowered,as already fully explained, thereby simultaneously swinging the skivingblades to skive a sole and returning them to their original position, the sole being in the meantime held unyielding by the automatic controller and then automatically released, as already explained.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a machine of the class described,a solesupport to sustain one side or face of a sole in the shank thereof, a pattern-plate adapted to be applied to the other side or face of said sole along the median line thereof inthe shank portion, said pattern-plate presenting at its opposite edges concavities to thereby leave portions of the face of the sole lying on said support exposed in the shank, combined with aseries of blades, carriers therefor,and means to operate said carriers and blades to cause the blades to enter and sweep through said concavities and attack and remove from the face of the sole sustained at its opposite side by said support, a skiving greater or less at the shank thereof, according to the quantity of sole exposed in the concavities of said pattern-plate, substantially as described.

2. In a machine of the classdescribed, a pattern-plate having a plurality of guide walls or surfaces, means to clamp the said patternplate upon the leather or other material to be skived, a plurality of skiving-blades and actuating means therefor to cause said blades to follow the pattern-walls of the said pattern-plate and skive from the edge of the leather more or less of the material according to the demands of the pattern-plate, substantially as described.

3. In a machine for shanking soles, a pattern-plate, having a surface to contact with the shank of the sole to be skived in its median line, said plate protecting the shank of the sole at the points in contact with it from the action of the skiving-blades, combined with a plurality of skiving-blades, cooperating with the pattern-faces of the patternplate, and means to operate said blades to remove or skive from said sole edge up to the face of the pattern-plate more or less of the material, whereby the unskived portions of the shanks of soles of different widths may be made uniform, the skived portions varying in the soles of different widths, substantially as described. I

4. In a machine of the class described, the following instrumentalities, viz: a non-revoluble sole-supporting plate, a non-revoluble pattern-plate, a controller to move the pattern-plate toward the sole-support to thereby clamp firmly and hold stationary the sole to be skived, a plurality of skiving-blades, their carriers, and means to move said carriers in a circular path.

5. In a machine of the class described, a sole-support, a pattern-plate, means to force said plate against the sole on said support, a vibrating arm having a guideway, a carrier mounted in said guideway and acted upon by a spring, a skiving-blade carried by said guideway, and means to move said arm whereby the end of the carrier may travel over the pattern-surface of the pattern-plate and skive the edge of the sole, to correspond with the contour of the pattern-plate, substantially as described.

6. In a machine of the class described, a sole-support, a pattern-plate, means to clamp the plate against the sole, a stop to support the lower end of the clamped sole, a rack, segments in engagement with said rack, arms carried by said segments, carriers mounted to slide in said arms and provided with skiv ing-blades, and means to move said rack whereby said segments are moved coincidently to cause the carriers carrying the skiving-blades to act and cause said blades to skive the opposite edges of the shank of the sole, and the said rack in its movements permitting the stop to be withdrawn from the end of the sole after the same has been skived, and means to release the clamping pressure of the pattern-plate on the sole to thereby effect the discharge of the skived sole, substantially as described.

7. In a machine of the class described, the following instrumentalities, viz: a sole-support, a pattern-plate having opposite concavities,means to clamp said pattern-plate against said sole and leave portions thereof exposed in the said concavities, a plurality of skiving-blades, automatic means for causing said blades to remove a skiving from the side of said sole commencing at its edge and extending to the concaved or pattern shaped edge of the said pattern-plate, whereby a skiving may be removed in effecting the beveling of the shank, said skiving differing in width according to the width of the sole, the unskived central part of the sole always being of the same width notwithstanding variations in widths of the sole, substantially as described.

8. In a machine of the class described,'the following instrumentalities, viz: a non-revoluble sole-supporting plate, a non-revoluble pattern-plate presenting concavities at its side, means to move the pattern-plate toward and to clamp the sole against the sole-supporting plate, leaving a portion of the face of the sole exposed in the concavities at each side of the pattern-plate, a plurality of skiving-blades, carriers therefor, and means to move said carriers and blades, whereby said blades may cut from one side of the solo in each of said concavities a skiving extended from the edge of the sole in the shank substantially to the edge of the concavities defining the contour of the pattern-plate.

9. In a machine of the class described, the combination with a sole-support and means to hold a sole in direct contact therewith, of a skiving-blade, means to move said blade into cutting engagement with the sole, and means to insure an absolutely uniform thickness' of skived portion of the sole irrespective of unevenness of the leather, substantially as described.

10. In a machine of the class described, the following instrumentalities, viz: a sole-supporting plate, a pattern-plate adapted to be forced against one side of the sole and clamp it against said supporting-plate, said patternplate having at its opposite side concavities varying in shape, the said concavities exposing in the shank of the sole certain portions thereof near each edge of the shank up to the median line of the pattern-plate, and a plurality of skiving-blades, and means to operate them, whereby said skiving-blades in their movements enter and sweep through the said concavities and acting upon the exposed parts of the shank of the sole at either side this median line remove from the said sole at one side in the shank a skiving of a greater or less width, that depending upon the amount of sole left exposed at the shank in the concavities of the pattern-plate, substantially as described.

11. In a machine of the class described, the following instrumentalities, viz: a sole-supporting plate, a pattern-plate having a narrow waist or median line separating two concavities located at opposite edges of said plate, said waist or median line contacting with the sole to be skived at the median line of its shank, to thereby cover a uniform portion or width of the shank of the sole, ieaving more or less of the sole exposed in the said concavities according to the width of the sole in the shank, a plurality of carriers each having a skiving-blade, means to move said carriers and blades to cause the latter to follow in a path defined by the edges of the concavities in the pattern-plate, said blades removing from the sides of the sole exposed in said concavities from its edge to the edges of the concavities a skiving varying in width according to the amount of sole left uncovered in the concavities of the pattern-plate, substantially as described.

12. A sole-shanking machine comprising OCTAVE PAQUETTE.

Witnesses:

- JOHN G. EDWARDS, GEO. H. MAXWELL. 

